Winding machine

Abstract

A coil-winding machine is disclosed in which an annular member on which wire is to be wound is inserted into a traveling ring and a shuttle and held in position. A predetermined length of wire is stored in the shuttle. The trialing end of the wire stored in the shuttle is fixed on the annular member. The shuttle is rotated in the direction of storage, while at the same time rotating the traveling ring in the direction of storage by the tension of the wire or a turning effort transmitted from a driving system, thus winding the wire on the annular member in the direction of storage. After forming a crossover wire, the wire is fixed on the annular member. The traveling ring is rotated in the direction opposite to that of storage. At the same time, the shuttle is rotated following the traveling ring with brake applied to the shuttle, or a turning effort in the direction of storage is transmitted to the shuttle through a clutch adapted to slip in response to a torque more than a setting, so that the required tension is applied to the wire, thus winding the wire on the annular member in the direction opposite to that of storage. In this way, the wire is wound in different directions in one process.

We claim: 
     
       1. A winding machine comprising: a traveling ring including an opening for introducing a part of an annular member within the inside of the ring, and a guide member for guiding a wire toward said annular member, said traveling ring being rotatably supported;   a shuttle including an opening adapted to be closed and opened selectively for introducing a part of said annular member within the inside of the shuttle, and a groove for storing the wire on the outer periphery thereof, said shuttle being rotatably supported on the same axis as said traveling ring in a predetermined spaced and facing relation with said traveling ring;   first driving means for rotating said traveling ring in the direction opposite to that of storing said wire on said shuttle so that the wire stored in said shuttle is wound on said annular member in the direction opposite to that of storage, said first driving means applying a braking force to said traveling ring in response to the rotation of said traveling ring following said shuttle by the tension of said wire when said wire is wound on said annular member in the direction of storage by the rotation of said shuttle;   second driving means for rotating said shuttle in the direction of storage for storing the wire in the groove of said shuttle by rotating said shuttle in the direction of storage, and for winding on said annular member in the direction of storage said wire stored in said shuttle, said second driving means applying a braking force to said shuttle in response to the rotation of said shuttle following said traveling ring by the tension of said wire when said wire is wound on said annular member in the direction opposite to that of storage by the rotation of said traveling ring; and   holding means for holding said annular member in such a manner that the part of said annular member introduced within the inside of said traveling ring and said shuttle crosses said axis common to said traveling ring and said shuttle at the winding position of said wire, said holding means rotating said annular member about the axis of said annular member in synchronism with the rotation of selected one of said traveling ring and said shuttle when said wire is wound on said annular member.   
     
     
       2. A winding machine comprising: a traveling ring including an opening for introducing a part of an annular member within the inside of the ring, and a guide member for guiding a wire toward said annular member, said traveling ring being rotatably supported;   a shuttle including an opening adapted to be closed and opened selectively for introducing a part of said annular member within the inside of said shuttle, and a groove for storing said wire on the outer periphery thereof, said shuttle being rotatably supported on the same axis as said traveling ring in a predetermined spaced and facing relation with said traveling ring;   first driving means for rotating said traveling ring in the direction of storing the wire on said shuttle and in the direction opposite to that of storage, thereby winding the wire stored on said shuttle, on said annular member in the direction of storage and in the direction opposite to that of storage;   second driving means for rotating said shuttle in the direction of storage, thereby storing the wire in said groove of said shuttle, said second driving means rotating said shuttle in the direction of storage when said traveling ring rotates in the direction of storage for winding the wire on said annular member in the direction of storage, and applying a braking force to said shuttle in response to the rotation of said shuttle following said traveling ring by the tension of the wire when said traveling ring rotates in the direction opposite to that of storage for winding the wire on said annular member in the direction opposite to that of storage; and   holding means for holding said annular member a part of which is introduced within the inside said traveling ring and said shuttle, said holding means rotating said annular member about the axis of said annular member in synchronism with the rotation of said traveling ring when the wire is wound on said annular member.   
     
     
       3. A winding machine comprising: a traveling ring including an opening for introducing a part of an annular member within the inside of the ring, and a guide member for guiding a wire toward said annular member, said traveling ring being rotatably supported;   a shuttle including an opening adapted to be closed and opened selectively for introducing a part of said annular member within the inside of the shuttle, and a groove for storing the wire on the outer periphery thereof, said shuttle being rotatably supported on the same axis as said traveling ring in a predetermined spaced and facing relation to said traveling ring;   first driving means for rotating said traveling ring in the direction of storing the wire on said shuttle and in the direction opposite to that of storage, thereby winding the wire stored on said shuttle, on said annular member in the direction of storage and in the direction opposite to that of storage;   second driving means including a friction clutch adapted to slip under a force more than a predetermined torque, said second driving means transmitting to said shuttle a turning effort in the direction of storage corresponding to said predetermined torque set in said friction clutch, when the wire is stored in said shuttle and when the wire is wound on said annular member by the rotation of said traveling ring; and   holding means for holding said annular member a part of which is introduced within the inside of said traveling ring and said shuttle, said holding means rotating said annular member about the axis of said annular member in synchronism with the rotation of said traveling ring when the wire is wound on said annular member.   
     
     
       4. A winding machine comprising: a traveling ring including an opening for introducing a part of an annular member within the inside of the ring, and a guide member for guiding a wire toward said annular member, said traveling ring being rotatably supported;   a shuttle including an opening adapted to be closed and opened selectively for introducing a part of said annular member within the inside of the shuttle, and a groove for storing the wire on the outer periphery thereof, said shuttle being rotatably supported on the same axis as said traveling ring in a predetermined spaced and facing relation to said traveling ring;   first driving means for rotating said traveling ring in the direction of storing the wire on said shuttle and in the direction opposite to that of storage, thereby winding the wire stored on said shuttle, on said annular member in the direction of storage and in the direction opposite to that of storage,   second driving means including an electromagnetic clutch adapted to change the magnitude of torque to be transmitted, in proportion to current applied thereto, and adapted to slip in response to a torque larger than said torque to be transmitted, said second driving means transmitting to said shuttle a turning effort of the torque in the direction of storage corresponding to the current applied to said electromagnetic clutch, when said wire is stored on said shuttle and when said wire is wound on said annular member by the rotation of said traveling ring;   an electromagnetic clutch control circuit for detecting the rotational angle of said traveling ring and applying to said electromagnetic clutch a predetermined current corresponding to the rotational angle of said traveling ring; and   holding means for holding said annular member a part of which is introduced within the inside of said traveling ring and said shuttle, said holding means rotating said annular member about the axis of said annular member in synchronism with the rotation of said traveling ring when the wire is wound on said annular member.